EP1038386B1 - Method and apparatus for reporting status information in a fixed wireless terminal - Google Patents

Method and apparatus for reporting status information in a fixed wireless terminal Download PDF

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Publication number
EP1038386B1
EP1038386B1 EP98967127A EP98967127A EP1038386B1 EP 1038386 B1 EP1038386 B1 EP 1038386B1 EP 98967127 A EP98967127 A EP 98967127A EP 98967127 A EP98967127 A EP 98967127A EP 1038386 B1 EP1038386 B1 EP 1038386B1
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EP
European Patent Office
Prior art keywords
status information
wireless terminal
fixed wireless
telephone line
telephone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98967127A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1038386A4 (en
EP1038386A1 (en
Inventor
Curtis Keith Baldwin
Phillip Anthony Garcia
Douglas H. Salvon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of EP1038386A1 publication Critical patent/EP1038386A1/en
Publication of EP1038386A4 publication Critical patent/EP1038386A4/en
Application granted granted Critical
Publication of EP1038386B1 publication Critical patent/EP1038386B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/021—Terminal devices adapted for Wireless Local Loop operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set

Definitions

  • This invention is related in general to wireless communications systems, and more particularly to an improved method and system for displaying or reporting status information from a fixed wireless terminal operating in a wireless local loop.
  • Many cellular telephones used in a wireless telephone system include a visual interface which displays status information to the user, such as the unit's ability to access a local cell site. Other status information about the cellular telephone itself may also be reported to the user via a visual interface and display on the cellular telephone.
  • a visual interface which displays status information to the user
  • Other status information about the cellular telephone itself may also be reported to the user via a visual interface and display on the cellular telephone.
  • the use of an ordinary wireline telephone connected to a fixed wireless terminal (FWT) in a wireless local loop (WLL) lacks such a visual display capability, but could also benefit from the status information that is available in the wireless local loop system.
  • the fixed wireless terminal may be mounted in a building or residence in a location that is not easily accessible for obtaining status information of the FWT.
  • status information may include idle or on-hook conditions, service status (e.g., no service, in service), received signal strength, battery charge, or other general faults which may affect service.
  • This status information is important to both the user and the fixed wireless terminal installer or troubleshooter, but is not accessible with an ordinary telephone connected to the FWT. The lack of such status information can lead to wasted time and frustration due to repeated unsuccessful attempts to place a call when unknown radio frequency (RF) or cellular system problems exist.
  • RF radio frequency
  • the aforementioned status information, as well as other information important to the user concerning hand-off or call duration is likewise inaccessible from the wireline telephone.
  • EP-A-0 680 230 discloses a method for reporting status information from a fixed wireless terminal having a telephone line coupling.
  • US-4,554,410 discloses a cellular terminal that transmits test information to a telephone set connected thereto.
  • EP-A-0 680 230 nor US-4,554,410 discloses coupling a status information output signal to a telephone coupling when a fixed wireless terminal is in an idle state and an associated telephone is on hook.
  • the present invention provides a fixed wireless terminal, as claimed in claim 1.
  • the present invention provides a method for reporting status information from a fixed wireless terminal comprising a transceiver, as claimed in claim 5.
  • a fixed wireless terminal having transceiver and call processing means establishes a wireless local loop by the connection of an ordinary wireline telephone to the FWT. This provides the user with an RF telephone link to a cellular telephone system for transmission of voice or data communications.
  • a standard caller ID module either in the telephone or in line between the fixed wireless terminal and the telephone, conveniently and inexpensively provides the means to provide status or test information to the user. The desired status information is reported on the display.
  • a signaling generator within the telephone line interface of the fixed wireless terminal encodes the information provided by the status processor into an FSK or DTMF signal according to the generic, asynchronous caller ID protocol, or, alternatively, the signaling generator may generate control signals to produce a sequence of ringing signals on the telephone ringer.
  • the present invention utilizes caller ID protocol as specified in the following Bellcore documents: GR-30-CORE Voiceband Data Transmission Interface provides the requirements for generating FSK data signals.
  • Document numbers TR-NWT-00031 and TR-NWT-001188 provide the requirements for implementing caller ID calling number and calling name respectively.
  • the caller ID protocol provides a generic asynchronous voice band protocol usable for displaying status and/or test or diagnostic information about a connected fixed wireless terminal on caller ID equipment both before call origination and during an active call.
  • "status information” may refer to operating conditions and parameters set within the fixed wireless terminal as well as “results" of tests or diagnostic procedures, which results may be considered “status information” resulting from the test.
  • FIG. 1 illustrates a wireless local loop (WLL) system 10 communicating with the public switched telephone network (PSTN) 20 over a wireless communication channel.
  • WLL 10 includes fixed wireless terminal (FWT) 12 connected to antenna 19 and telephone line 18 .
  • caller ID module 14 Also connected to telephone line 18 are caller ID module 14 and telephone 16 . Connections to telephone line 18 may be made using standard connectors (not shown) such as those known by the designation RJ-11, and the like.
  • Caller ID module 14 is a typical unit available to consumers and is equipped with a display for displaying calling number and perhaps calling name information, or other similarly encoded information.
  • BTS Base Telephone Station 22
  • PSTN 24 Base Telephone Station
  • PSTN 24 Base Telephone Station
  • FIG. 1 other standard units in FIG. 1 , such as telephone 16 , caller ID module 14 , telephone line 18 , and antenna 19 , are standard, well-known items, which will not be described further.
  • a data transmission path to caller ID module 14 may be established over telephone line 18 when fixed wireless terminal 12 is in an idle state prior to call origination and telephone 16 is on-hook.
  • Useful status information may thus be displayed on caller ID module 14 before a call is originated.
  • the following kinds of status information may be displayed: service status, i.e., no-service or in-service; received signal strength indication (RSSI); low-battery indication; system test results; or any other general faults or performance information.
  • WLL system 10 of FIG. 1 may be used to establish a data transmission path to caller ID module 14 during a call, while fixed wireless terminal 12 is in a conversation state, and telephone 16 is off-hook.
  • the kinds of conversation-state, status information which may be displayed include: service status, handoff information, call duration, low battery, or other general faults or performance information.
  • the features of WLL system 10 may be used during maintenance, service, or repair operations to extract test data or diagnostic or monitoring indications from fixed wireless terminal 12 .
  • This status information may be obtained by entering a coded dialing sequence on the key pad or rotary dial of telephone 16, followed by display of the requested status information or further instruction prompts on caller ID module 14 .
  • Examples of status information related to tests and diagnostic procedures may include, but is not limited to: results of diagnostic routines, location of a fault, accumulated values in monitoring registers, and the like.
  • Status information may also be reported with other output indications in the form of tone or speech signals generated in fixed wireless terminal 12 and reproduced in the earpiece of telephone 16 .
  • Other output signals in the form of ringing signals may also be generated in fixed wireless terminal and coupled to telephone 16 to report status information.
  • FIG. 2 shows a functional block diagram of a WLL system embodying the present invention.
  • fixed wireless terminal 200 is coupled to an RF communications channel (not shown) by antenna 214, and to telephone line 221 by coupling 202.
  • Coupling 202 which may serve the dual purpose of providing a local loop interface and a status information signaling port, may illustratively be an RJ-11 connector and a local loop electrical circuit.
  • telephone line 221 may be coupled to caller ID module 222 and to telephone 220 using standard telephone line cabling and connectors (connectors not shown), such as the aforementioned RJ-11 type connector.
  • Antenna 214 , coupling 202 , and the other connectors are well known in the art and will not be further described.
  • transceiver 210 and call processor 208 are well known elements of wireless cellular telephones.
  • the functions of call processor 280 include establishing and maintaining communication with base telephone station (BTS) 22 , initiating and terminating a call, encoding and decoding voice and data, conforming to the selected multiple access protocol, and other similar functions typically performed in a subscriber unit in a cellular communications system.
  • BTS base telephone station
  • the present invention may be implemented in a CDMA (Code Division Multiple Access) fixed wireless terminal.
  • CDMA Code Division Multiple Access
  • call processor 208 includes status information 218 .
  • status information may be stored in memory or registers or other storage devices, and may include operating conditions and parameters, monitored parameters, test results, or the like.
  • the signals conducted along path 207 may accordingly include voice or data signals, control signals, and the like.
  • Voice path 201 illustrates the bi-directional coupling of the voice, data, and control signals between the call processor 208 and coupling 202 .
  • dialing decoder 204 for detecting and decoding dual-tone-multi-frequency (DTMF) or pulse dialing signals received by fixed wireless terminal 200 on telephone line 221 .
  • Dialing signals are coupled to dialing decoder 204 along path 203 and decoded dialing data is coupled to call processor 208 along path 205 .
  • dialing decoder 204 may be implemented as part of call processor 208 , especially if call processor 208 is largely implemented in software on a digital signal processor.
  • Call processor 208 is further coupled to telephone line 221 via data signal path 213 , signaling generator 206 , output signal path 209 , and coupling 202 .
  • Data sent by call processor 208 or status processor 212 are encoded for modulation in signaling generator 206 and provided as output signals for display or other reporting on telephone line 221 .
  • status processor 212 is shown coupling transceiver 210 to data encoder 206 along signal path 219 and signal path 215 .
  • Status processor 212 also interacts with call processor 208 along bi-directional signal path 217 .
  • dialing decoder 204 is also coupled to status processor 212 via signal path 211 .
  • Status processor 212 performs a number of functions under the control of call processor 208 . These functions include, but are not limited to, monitoring and storing certain call processing parameters utilized during set up, reception and transmission of communication with another station. Other parameters attendant to the reliable operation of fixed wireless terminal 200 itself may be monitored during operation and stored for reporting upon request.
  • diagnostic test routines may be initiated upon request during certain operating conditions or during maintenance, service, or repair. Any of such status information or test data may be retrieved and formatted in status processor 212 for delivery to signaling generator 206 .
  • status processor 212 responds to certain dialing signals input from dialing decoder 204 to produce additional status information and/or test data.
  • This status information may be encoded by signaling generator 206 as caller ID signals for coupling to caller ID display apparatus, or as signals to produce an audible response in telephone 220 .
  • coupling 202 , dialing decoder 204 , signaling generator 206 and their associated signal paths together function as telephone line interface 216 , shown to the left and below the dashed line within fixed wireless terminal 200 in FIG. 2 .
  • signaling generator 206 has character or tone generation and modulation functions, depending on the particular fixed wireless terminal 200 chosen. Several character or tone generator blocks may be required.
  • signaling generator 206 includes caller ID character generator 234 and modulator 230 , in addition to primary character generator 232 .
  • Signal paths 213, 215, 231, 233 and 209 are shown interconnecting the functional blocks as shown in FIG. 3 .
  • Primary character generator 232 may illustratively include an ASCII character generator, a signaling tone generator, a universal asynchronous receiver/transmitter (UART) or other device for changing the form of digital data for modulation and coupling to the telephone line 221 of FIG. 2.
  • Primary character generator 232 may also generate ringing signals.
  • FIG. 3 The foregoing examples described for FIG. 3 are provided for illustration and should not be understood as limiting alternative implementations as will be apparent to those skilled in the art.
  • the fixed wireless terminal contemplates signaling or reporting of status information or test results as out-of-band data, such as display characters or symbols, or as in-band-signals, such as audible tones or ringing signals and the like. Either or both implementations may be provided in the same implementation. Further, the fixed wireless terminal contemplates use of the same telephone line or port for both initiation of a request for status information and for reporting, indicating or displaying such status information.
  • FIG. 4 which shows a functional flow diagram of a WLL system will next be described in conjunction with the apparatus illustrated in FIGs. 2 and 3 .
  • flow proceeds through decision blocks 304, 306, 308 and 310 to determine an operating state of the FWT.
  • Such operating states may be designated as: Idle 304 , Test Requested 306 , Call In Progress 308 , and Incoming Call 310 .
  • the flow of operation proceeds to a processing function, followed by a formatting step to format the status information resulting from the processing step.
  • an output signal is generated, coupled to the telephone line, and the process returns to the beginning of the operating state sequence at block 304 .
  • selected status information may be displayed or reported. Such selected status information may be continuously monitored and read out, as depicted at block 312 .
  • Such status information may include system parameters such as service status (e.g., in or out of service), low battery, RSSI, or other general fault or condition indicators which may be monitored on-hook
  • the monitored status information is then formatted, as shown at block 320 , for reporting via coupling 202 .
  • an output signal is generated at block 322 and such output signal is coupled to the telephone line, as illustrated at block 324 .
  • the same general process flow is used for reporting or indicating test results on the telephone line via other signals such as synthesized speech, audible tones, ringing signals and the like.
  • status information is parsed and then formatted for display as a caller ID signal or reporting via audible signals.
  • caller ID character generator 234 within signaling generator 206 in FIG. 3 generates an output signal by encoding and modulating the formatted status information into character data or display data, or audible reporting signals, for transmission along telephone line 221 , as shown in FIG. 2 .
  • the output signal is coupled to telephone line 221 in process step 324 ( FIG. 4 ) by the coupling to telephone line 202 ( FIG. 2 ).
  • test requests may be entered by a user or service person using telephone 220 and may include any of a wide variety of diagnostic tests as described previously.
  • a request may be entered in the fixed wireless terminal by dialing a special sequence of digits on telephone 220 . Read out or recalling information to be displayed again proceeds as described above.
  • the fixed wireless terminal may monitor certain call parameters while the telephone is off-hook, wherein the status processor 212 responds by performing the monitoring and read out as described above.
  • the normal caller ID function is activated and carried out accordingly in process steps 318, 320, 322 and 324 in the same way as discussed previously.
  • the FWT may further provide special signaling utilizing the caller ID protocol to communicate the status and test information resulting from both routine and special monitoring or diagnostic sequences.
  • special signaling may include that occurring during the Open Switch Interval which precedes on-hook transmission and the Customer Premises Equipment Alerting Signal (CAS) that is required before off-hook transmission.
  • Other features of the FWT illustratively include implementation of password entry or of a test command parser via DTMF or pulse digit detection and decoding, calling the proper test commands and sending the results via either out-of-band data signaling or in-band audible signals over the telephone line coupled to the FWT.
  • status or test information may be requested, for example, by call processor 208 as part of a step in an operating sequence of the FWT, which request is not specifically initiated by a user as described previously.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
EP98967127A 1997-07-30 1998-06-24 Method and apparatus for reporting status information in a fixed wireless terminal Expired - Lifetime EP1038386B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/902,136 US6104909A (en) 1997-07-30 1997-07-30 Method and apparatus for reporting status information in a fixed wireless terminal
US902136 1997-07-30
PCT/US1998/013160 WO1999007135A1 (en) 1997-07-30 1998-06-24 Method and apparatus for reporting status information in a fixed wireless terminal

Publications (3)

Publication Number Publication Date
EP1038386A1 EP1038386A1 (en) 2000-09-27
EP1038386A4 EP1038386A4 (en) 2002-02-06
EP1038386B1 true EP1038386B1 (en) 2004-05-06

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EP98967127A Expired - Lifetime EP1038386B1 (en) 1997-07-30 1998-06-24 Method and apparatus for reporting status information in a fixed wireless terminal

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US (1) US6104909A (pl)
EP (1) EP1038386B1 (pl)
JP (1) JP4149131B2 (pl)
KR (1) KR100370898B1 (pl)
CN (1) CN1156135C (pl)
AR (1) AR013647A1 (pl)
AU (1) AU727069B2 (pl)
BR (1) BR9810856A (pl)
CA (1) CA2298550A1 (pl)
DE (1) DE69823696T2 (pl)
HU (1) HUP0004249A3 (pl)
ID (1) ID20651A (pl)
IL (2) IL133861A0 (pl)
PL (1) PL195939B1 (pl)
WO (1) WO1999007135A1 (pl)

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Also Published As

Publication number Publication date
AU727069B2 (en) 2000-11-30
EP1038386A4 (en) 2002-02-06
CN1156135C (zh) 2004-06-30
JP2001512933A (ja) 2001-08-28
DE69823696T2 (de) 2005-04-21
DE69823696D1 (de) 2004-06-09
HUP0004249A2 (en) 2001-03-28
JP4149131B2 (ja) 2008-09-10
BR9810856A (pt) 2000-07-25
WO1999007135A1 (en) 1999-02-11
AR013647A1 (es) 2001-01-10
PL338583A1 (en) 2000-11-06
CN1265803A (zh) 2000-09-06
IL133861A (en) 2006-04-10
PL195939B1 (pl) 2007-11-30
KR20010022475A (ko) 2001-03-15
HUP0004249A3 (en) 2002-05-28
ID20651A (id) 1999-02-04
KR100370898B1 (ko) 2003-02-05
CA2298550A1 (en) 1999-02-11
AU8263598A (en) 1999-02-22
US6104909A (en) 2000-08-15
IL133861A0 (en) 2001-04-30
EP1038386A1 (en) 2000-09-27

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